Alexander Kowalchuk

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Estevan, CA

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulically powered ball valve lift apparatus and method for down...
- Patent number 9,890,780
- Issue date Feb 13, 2018
- Tru Lift Supply Inc.
- Alexander Kowalchuk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically powered ball valve lift apparatus and method for down...
- Patent number 9,033,688
- Issue date May 19, 2015
- Tru Lift Supply Inc.
- Alexander Kowalchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Hydraulically Powered Ball Valve Lift Apparatus and Method for Down...
- Publication number 20150308241
- Publication date Oct 29, 2015
- Tru Lift Supply Inc.
- Alexander Kowalchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Hydraulically Powered Ball Valve Lift Apparatus and Method for Down...
- Publication number 20150098840
- Publication date Apr 9, 2015
- Tru Lift Supply Inc.
- Alexander Kowalchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...